1、December 2013 Translation by DIN-Sprachendienst.English price group 7No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 21.060.20!%+L“2089641www.din.deDDIN 929Hexagon weld nuts,English translation of DIN 929:2013-12Sechskant-Schweimuttern,Englische bersetzung von DIN 929:2013-12crous hexagonaux souder,Traduction anglaise de DIN 929:2013-12SupersedesDIN 929:2013-05www.beuth.deDocument comprises 10 pagesIn case of do
3、ubt, the German-language original shall be considered authoritative.01.14 DIN 929:2013-12 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Scope . 4 2 Normative references . 4 3 Dimensions 5 4 Technical delivery conditions . 7 5 Designation . 8 6 Marking 8 7 Representation in dr
4、awings . 8 8 Connecting dimensions . 8 Bibliography . 10 DIN 929:2013-12 3 Foreword This standard has been prepared by Working Committee NA 067-00-03 AA Verbindungselemente mit metrischem Innengewinde of the Normenausschuss Mechanische Verbindungselemente (FMV) (Fasteners Standards Committee). The D
5、IN 929:1972-12 edition assigned the property class 8 to hexagon weld nuts, adding weldable. Since then, proof loads for nuts have been increased and new nut heights specified in international (and European) specifications (see DIN EN ISO 898-2). Neither in this nor in the previous revision of this s
6、tandard did it seem advisable to increase the height of weld nuts and thus harmonize it with the calculation basis for nuts with full loadability, since weld nut mounting is largely automated. Changing nut dimensions would have caused major difficulties which would not have been outweighed by a slig
7、htly greater resistance to stripping. Therefore, this latest edition of this standard leaves nut dimensions unchanged, without specifying property classes. Instead, it only specifies steel with a maximum carbon content of 0,25 % and relevant proof loads. The proof loads of weld nuts specified in thi
8、s standard are deemed sufficient to form fully loadable screw connections with bolts of a property class 8.8. Weld nuts with a higher loadability are specified in DIN EN ISO 21670. The DIN 4000-161-5 tabular layout of product properties applies to weld nuts covered by this standard. Attention is dra
9、wn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. Amendments This standard differs from DIN 929:2000-01 as follows: a) normative references have been updated; b) in Ta
10、ble 1 and Table 4, the number of positions after the decimal comma has been harmonized; c) according to DIN ISO 965-1, symbol d1has been changed to D; d) symbols d2to d5have been changed to d1to d4; e) Table 2 replaces 4.1 to 4.3, 4.5 and 4.6; f) the standard has been editorially revised. DIN 929:20
11、13-05 contained an error that has been corrected as follows: a) In Table 1, the limit deviations for h1 and h2 included in the standard preceding the May 2013 edition have been re-included. Previous editions DIN 929: 1965-09, 1972-12, 1983-08, 1987-09, 1998-02, 2000-01, 2013-05 DIN 929:2013-12 4 1 S
12、cope This document specifies requirements for hexagon weld nuts with coarse metric threads from sizes M3 to M16 and with fine pitch metric threads with nominal diameters from 8 mm to 16 mm in product grade A. According to DIN EN ISO 898-1, weld nuts specified in this standard are suitable for connec
13、tion with bolts of property class 8.8. This standard does not apply to hexagon weld nuts with flange as specified in DIN EN ISO 21670. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated
14、 references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 13-1, ISO general purpose metric screw threads Part 1: Nominal sizes for coarse pitch threads Nominal diameter from 1 mm to 68 mm DIN 13-5, ISO g
15、eneral purpose metric screw threads Part 5: Nominal sizes for 1 mm and 1,25 mm fine pitch threads Nominal diameter from 7,5 mm to 200 mm DIN 13-6, ISO general purpose metric screw threads Part 6: Nominal sizes for 1,5 mm fine pitch threads Nominal diameter from 12 mm to 300 mm DIN 267-2, Fasteners T
16、echnical delivery conditions Design and dimensional accuracy DIN EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread DIN EN ISO 898-2, Mechanical properties of fasten
17、ers made of carbon steel and alloy steel Part 2: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread DIN EN ISO 3269, Fasteners Acceptance inspection DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN ISO 4759-1, Tolerances for fasteners Part 1: Bolts, s
18、crews, studs and nuts Product grades A, B and C DIN EN ISO 21670, Hexagon weld nuts with flange DIN ISO 965-1, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data DIN ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts ASME B 1.1, Unified Inch
19、 Screw Threads (UN and UNR Thread Form)1)1) Obtainable from Beuth Verlag GmbH (Foreign Standards Service), 10772 Berlin, Germany. DIN 929:2013-12 5 3 Dimensions Hexagon weld nuts, with the exception of welding projections, do not need to be designed as shown in Figure 1, however, their dimensions sh
20、all be as specified in Table 1. Dimensions in millimetres Figure 1 Dimensions (notation) DIN 929:2013-12 6 Table 1 Dimensions Dimensions in millimetres Thread size b d1d2d3eaD D PbLimit deviations d11 H13 max. min. M3 0,80 0,2 4,50 4,50 3,15 8,15 M4 0,80 6,00 6,00 4,20 9,83 M5 0,80 7,00 7,00 5,25 10
21、,95 M6 0,90 0,22 8,00 8,00 6,30 12,02 M8 M8 1 1,00 0,25 10,50 10,50 8,40 15,38 M10 M10 1,25 M10 1 1,25 0,3 12,50 12,50 10,50 18,74 7/16-20 UNF-2Bc1,25 12,50 13,50 11,70 18,74 7/16-20 UNF-2Bc1,25 13,50 13,50 11,70 20,91 M12 M12 1,25 M12 1,5 1,25 14,80 14,80 12,60 20,91 (M14) (M14 1,5) 1,50 0,4 16,80
22、16,80 14,70 24,27 M16 M16 1,5 1,50 18,80 18,80 16,80 26,51 Thread size h1h2m s Mass (7,85 kg/dm3) kg per 1 000 units D D PbLimit deviations Limit deviations h14 h13 M3 0,55 0 -0,1 0,25 0 -0,1 3,0 7,5 0,78 M4 0,65 0,35 3,5 9,0 1,13 M5 0,70 0,40 4,0 10,0 1,73 M6 0,75 0 -0,15 0,40 5,0 11,0 2,50 M8 M8 1
23、 0,90 0,50 0 -0,15 6,5 14,0 5,27 M10 M10 1,25 M10 1 1,15 0 -0,2 0,65 8,0 17,0 9,58 7/16-20 UNF-2Bb1,15 0,65 0 -0,2 10,0 17,0 12 7/16-20 UNF-2Bb1,40 0,80 10,0 19,0 14 M12 M12 1,25 M12 1,5 1,40 0,80 10,0 19,0 13,7 (M14) (M14 1,5) 1,80 1,00 11,0 22,0 21,3 (M16) (M16 1,5) 1,80 1,00 13,0 24,0 28,5 Bracke
24、ted sizes should be avoided if possible. aemin= 1,12 sminbP is the thread pitch. cAccording to ASME B 1.1; only for the fitting of safety belts in motor vehicles. DIN 929:2013-12 7 4 Technical delivery conditions See Table 2. Table 2 Technical delivery conditions Material Steel (St) with a maximum c
25、arbon mass of 0,25 %aGeneral requirements Standard DIN ISO 8992 Thread Tolerance class 6G Standard DIN 13-1, DIN 13-5, DIN 13-6, DIN ISO 965-1 Mechanical properties Proof loads See Table 3. Proof load test DIN EN ISO 898-2 Limit deviations, geometrical tolerances Product grade A Standard DIN EN ISO
26、4759-1, DIN 267-2 Surface finish Coating Plain DIN EN ISO 4042 applies with regard to electroplating. Plain weld nuts may already be affected by corrosion during storage or transportation. It is the manufacturers responsibility to take protective measures against corrosion during transportation with
27、out impairing nut weldability. Acceptance inspection DIN EN ISO 3269 applies with regard to acceptance inspection. aOther steel qualities shall be subject to agreement. If the proof load test is carried out according to DIN EN ISO 898-2, the loads given in Table 3 apply. In case of dispute, welding
28、projections shall be removed prior to testing. Table 3 Proof loads Coarse thread D Proof load in N Fine pitch thread D P Proof load in N M3 3 800 M4 6 800 M5 11 000 M6 15 500 M8 28 300 M8 1 30 200 M10 44 800 M10 1 50 200 M10 1,25 47 800 7/16-20 UNF-2B 53 600 M12 65 300 M12 1,25 72 100 M12 1,5 68 200
29、 M14 89 700 M14 1,5 97 500 M16 123 000 M16 1,5 132 000 DIN 929:2013-12 8 5 Designation Designation of an M10 hexagon weld nut, made of steel (St): Weld nut DIN 929 M10 St For hexagon weld nuts with UNF thread the relevant width across flats is to be added to the designation. Designation of a hexagon
30、 weld nut with 7/16-20 UNF-2B thread and a width across flats of 17 mm (SW17), made of steel (St): Weld nut DIN 929 7/16-20 UNF-2B SW17 St 6 Marking Hexagon weld nuts of thread sizes M5 and above are to be marked with the manufacturers symbol by indenture to a spot at the discretion of the manufactu
31、rer. 7 Representation in drawings See Table 2. Figure 2 Representation in drawings 8 Connecting dimensions See Figure 3 and Table 4. Figure 3 Connecting dimensions (Nut not welded on) (notation) DIN 929:2013-12 9 Table 4 Connecting dimensions Dimensions in millimetres Thread size as in Table 1 Sheet
32、 thickness a Hole diameter d4D D P min. max. H11 M3 0,63 1,5 4,5 M4 0,75 1,5 6,0 M5 0,88 2,0 7,0 M6 0,88 2,5 8,0 M8 M8 1 1,00 3,0 10,5 M10 M10 1,25 M10 1 1,25 4,0 12,5 7/16-20 UNF-2B 1,25 4,0 13,5 M12 M12 1,25 M12 1,5 1,50 5,0 14,8 M14 M14 1,5 2,00 6,0 16,8 M16 M16 1,5 2,00 6,0 18,8 DIN 929:2013-12 10 Bibliography DIN 4000-161, Tabular layout of product properties Part 161: Fasteners with internal thread
